In the given figure, RS is a diameter of the circle. NM is parallel to RS and ∠MRS = 29°.
Calculate: ∠RNM,
Calculate: ∠RNM,
Exercise 17 (A) | Q 25.1 | Page 259
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Join RN and MS.
∴ ∠RMS = 90°
(Angle in a semicircle is a right angle)
∴ ∠RSM = 90° - 29° = 61°
(By angle sum property of triangle RMS)
∴ ∠RNM =180° ∠RSM =180° - 61° = 119°
(pair of opposite angles in a cyclic quadrilateral are supplementary)
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